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Naptha everyone
[rquote=623092&tid=153949&author=Yttrium2]

*(In other words what is Naptha and where does ...
17-9-2019 at 13:47
by: RedDwarf
Naptha everyone
Petroleum Ether (which isn't an ether) is a low boiling point range naptha, but most napthas are NOT ...
17-9-2019 at 05:11
by: RedDwarf
Budget Microscope - Is this a good option?
It's just a bubble or uncovered area.
17-9-2019 at 05:08
by: RedDwarf
Synthesize ethylene glycol diacetate?
[rquote=623059&tid=153970&author=Pumukli]Btw. ethylene glycol is an unhealthy compound. If y ...
17-9-2019 at 05:05
by: RedDwarf
Naptha everyone
Yes Naptha is just a convenient term for a petroleum solvent usually defined by it's boiling point r ...
16-9-2019 at 05:15
by: RedDwarf
Al catching fire in a cast iron crucible in a kiln?
At one time I used a home made crucible (made of 4mm wall steel pipe with a plate welded onto the en ...
4-9-2019 at 04:17
by: RedDwarf
Pump for Condenser and Aspirator
I use a 15W pond pump for my cooling, which gives a good flow.
4-9-2019 at 04:08
by: RedDwarf
DIBROMOPROPYL ETHER- £15/200g Ebay UK
I can't believe that Dibromopropyl ether is the correct name for that compound .

Looking it up on ...
4-9-2019 at 04:04
by: RedDwarf
Concentrating H2SO4 without distillation (with flask ans some PTFE )
Just to be clear, I'm not suggesting that Graham's law (and hence molecular mass) isn't part of the ...
29-7-2019 at 13:26
by: RedDwarf
Concentrating H2SO4 without distillation (with flask ans some PTFE )
My isopropanol / water mixture test didn't turn out as hoped. I left the mixture in the flask at roo ...
29-7-2019 at 12:41
by: RedDwarf
Concentrating H2SO4 without distillation (with flask ans some PTFE )
[rquote=619102&tid=152456&author=rockyit98]it not the size that matter its the molecular wei ...
29-7-2019 at 12:27
by: RedDwarf
Ideas/Request for a Reaction Chamber
How about a flat bottomed borosilicate test tube such as:

https://www.ebay.co.uk/itm/Culture-Tes ...
29-7-2019 at 12:11
by: RedDwarf
Concentrating H2SO4 without distillation (with flask ans some PTFE )
[rquote=619035&tid=152456&author=Abromination]

Do you know the concentration of ethanol b ...
28-7-2019 at 14:02
by: RedDwarf
Concentrating H2SO4 without distillation (with flask ans some PTFE )
Last night's trial with the wine didn't work as the seams between the tape leaked with a water/alcoh ...
28-7-2019 at 11:43
by: RedDwarf
Making ice in winter to cool the house in summer
This used to be all the rage back in the 1800s, landed gentry used to have an ice house in the groun ...
28-7-2019 at 11:26
by: RedDwarf
Concentrating H2SO4 without distillation (with flask ans some PTFE )
Without the fume cupboard I'm trying a less corrosive solvent mix (2017 Plum wine), ethanol is a sma ...
27-7-2019 at 12:57
by: RedDwarf
Free Oertling R20 Balance (200g x 0.1mg) Aylesbury UK
I'd be interested but unfortunately Aylesbury is just too far. Could you try and ensure that in futu ...
27-7-2019 at 10:48
by: RedDwarf
Concentrating H2SO4 without distillation (with flask ans some PTFE )
Here in the UK there are 3 types of ptfe tape :
yellow for gas ( heavier weight, not sure if it's t ...
27-7-2019 at 07:12
by: RedDwarf
Concentrating H2SO4 without distillation (with flask ans some PTFE )
I can believe this might work - membrane separation due to greater permeability of the much smaller ...
26-7-2019 at 08:53
by: RedDwarf
cyanide usage for gold leaching
What's your rationale for going with a cyanide route rather than a non-cyanide route. How much do yo ...
24-7-2019 at 13:44
by: RedDwarf
Useful reference books in the lab
Mine's the fifth edition (and has managed to survive more than 35 years of lack of care) and while t ...
24-7-2019 at 13:41
by: RedDwarf
The most useful three things in my lab
@SWIM

Do you have different lab assistants for different poisons or are they (/was he) multi-tale ...
24-7-2019 at 12:12
by: RedDwarf
Making Benzene by Decarboxylation Video
Good video, liked the pace and clarity and I'm also a fan of the economics being included. Do you ha ...
24-7-2019 at 09:57
by: RedDwarf
Why is my zinc powder not powder???
What are you trying/planning to do with the zinc? For some uses you really don't want powder and tur ...
24-7-2019 at 09:53
by: RedDwarf
The most useful three things in my lab
I'd have to agree with Teodor as books are probably what inspire me most.
In terms of what I run o ...
23-7-2019 at 14:19
by: RedDwarf
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